BS EN 12190-1999 Products and systems for the protection and repair of concrete structures - Test methods - Determination of compressive strength of repair mortar《混凝土结构的保护和修复的系统和产品.pdf

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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12190:1999 The Euro

2、pean Standard EN 12190:1998 has the status of a British Standard ICS 91.100.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Products and systems for the protection and repair of concrete structures Test methods Determination of compressive strength of repair mortarBS EN 121

3、90:1999 This British Standard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 February 1999 BSI 02-1999 ISBN 0 580 30807 3 Amendments issued since publicatio

4、n Amd. No. Date Text affected National foreword This British Standard is the English language version of EN 12190:1998. The UK participation in its preparation was entrusted by Technical Committee B/517, Concrete, to Subcommittee B/517/8, Repair and protection of concrete, which has the responsibili

5、ty to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations

6、represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Cor

7、respondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does

8、not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 4, an inside back cover and a back cover.CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komit

9、ee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12190 1998 E EUROPEAN STANDARD EN 12190 NORME EUROPE ENNE EUROPA ISCHE NORM October 1998 ICS 91.100.30 De

10、scriptors: concrete structures, repairs, protection, materials, tests, compression tests, determination, compressive strength English version Products and systems for the protection and repair of concrete structures Test methods Determination of compressive strength of repair mortar Produits et syst

11、e mes pour la protection et la re paration des structures en be ton Me thodes dessais De termination de la re sistance a l a compression pour les mortiers de re paration Produkte und Systeme fu r den Schutz und die Instandsetzung von Betontragwerken Pru fverfahren Bestimmung der Druckfestigkeit von

12、Reparaturmo rteln This European Standard was approved by CEN on 2 October 1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bi

13、bliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility

14、 of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands,

15、 Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 12190:1998 BSI 02-1999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 104, Concrete (performance, production, placing and compliance criteria), the Secretariat of which is held by DIN. This Eu

16、ropean Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 1999, and conflicting national standards shall be withdrawn at the latest by April 1999. This European Standard is one of a series dealing with produ

17、cts and systems for the protection and repair of concrete structures. It describes a method for determining the compressive strength of repair mortar or concrete samples, which can be made using PC (polymer mortars and polymer concretes), PCC (polymer hydraulic cement mortars or concretes) or HC (hy

18、draulic mortars and hydraulic concretes) as defined in EN 1504-1. The method applies to materials with a maximum aggregate size of 8 mm. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: A

19、ustria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Definitions 3 4 Principle 3 5 Equipment 3 5

20、.1 Concrete mixer 3 5.2 Mortar mixer 3 5.3 Moulds 3 5.4 Vibrating table 3 5.5 Climatic chambers 3 5.6 Saw 3 5.7 Balance 3 5.8 Compressive strength testing machine and jig 3 6 Preparation of test specimens 3 7 Test procedure 3 7.1 Bulk density 3 7.2 Compressive strength 4 8 Test report 4 Annex A (nor

21、mative) Summary of temperatures and humidities for the curing, conditioning and testing of repair products and systems 4 A.1 Curing 4 A.2 Conditioning and testing 4Page 3 EN 12190:1998 BSI 02-1999 1 Scope This European Standard specifies a method for determining the compressive strength of mortars a

22、nd concretes for structural and non-structural repair, as defined in EN 1504-1. The method applies to all types of repair mortar and concrete with a maximum aggregate size of 8 mm. It distinguishes between mortar with hydraulic and polymer binders. Hereafter, the term mortar refers to both mortars a

23、nd concretes. NOTE For repair mortars and concretes with aggregate in excess of 8 mm in size, conventional concrete test methods according to prEN 206 are used. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. Normative ref

24、erences are cited at the appropriate places in the text and the relevant publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated refe

25、rences this European Standard refers to the latest edition of the publication. EN 1504, Products and systems for the protection and repair of concrete structures Definitions, requirements, quality control and evaluation of conformity. EN 196-1, Methods of testing cement Part 1 : Determination of str

26、ength. prEN 206, Concrete Performance, production and conformity 3 Definitions For the purposes of this standard, the definitions contained in EN 1504-1 apply. 4 Principle For PC, PCC and HC mortar the principle of the test method is to determine the cube compressive strength of 40 mm specimens. An

27、alternative method is to use the equivalent cube method based on prismatic test specimens of 40 mm3 40 mm3 160 mm in size. For prisms of PC mortar, the compressive strength shall only be determined after preparing the sample by cutting into 40 mm cube specimens. 5 Equipment The following equipment i

28、s required. 5.1 Concrete mixer, forced action pan type mixer. 5.2 Mortar mixer, in accordance with EN 196-1. 5.3 Moulds, for producing test specimens, as described in EN 196-1, comprising prismatic moulds 40 mm3 40 mm in cross section and 160 mm in length and 40 mm cube test specimens. 5.4 Vibrating

29、 table, to compact the mortar, where required. 5.5 Climatic chambers, programmable and adjustable. 5.6 Saw, with a diamond tipped blade. 5.7 Balance, with an upper load limit of not less than 1 kg and a minimum accuracy of 0,01 g. 5.8 Compressive strength testing machine and jig,a s described in EN

30、196-1. 6 Preparation of test specimens Use the following mixing technique for preparing the repair mortar. Unless stated otherwise by the manufacturer, use the mortar mixer (5.2), set to a low speed. For PCC and cementitious mortar, add the gauging liquid to the bowl and then add the dry ingredients

31、, mixing for a total period of at least two minutes. For PC mortar, combine the component parts of the mortar in accordance with the manufacturers instruction, mixing until fully blended and streak-free. Where manufacturers instructions preclude use of part bags of material, a concrete mixer (5.1) o

32、r other method recommended by the manufacturer shall be used. NOTE It has been found that certain types of repair mortar can foam excessively under the action of the mixer specified in EN 196-1. An alternative is to use a concrete mixer (5.1). The mixed material shall be carefully placed into the mo

33、uld and compacted using a hand tamper or rod as required. Where permitted by the manufacturer, the mortar shall be compacted by vibrating table or other means. Handling and storage of the test specimens before demoulding as well as demoulding of the specimens shall be in accordance with EN 196-1. Af

34、ter manufacture, the test specimens shall be cured in accordance with annex A. 7 Test procedure 7.1 Bulk density Determine the bulk density of three mortar test prisms or six mortar test cubes by weighing them after storage to the nearest 0,1 g. Measure the dimensions of the specimens to the nearest

35、 0,1 mm. Calculate the bulk density r to the nearest 10 kg/m 3 using the equation: r = w v where: w is the mass of the prism or cube in kilogrammes; v is the volume of the prism or cube in cubic metres.Page 4 EN 12190:1998 BSI 02-1999 Calculate the mean value and standard deviation of the density to

36、 the nearest 10 kg/m 3 . The water displacement method described in prEN 206 shall be used for HC mortar that is cured under water, or as an alternative method for PCC or PC mortars which have a low water absorption of less than 1%. Calculate the mean value and standard deviation to the nearest 10 k

37、g/m 3 . 7.2 Compressive strength Prepare the PCC and cementitious mortar prisms by cutting or breaking into equal halves by suitable means which does not subject the specimens to harmful stresses. For PC prisms, cube specimens shall be prepared by cutting with a saw (5.6). Determine compressive stre

38、ngth of six cube or prism end specimens in accordance with EN 196-1 for each age required. The age of the mortar at the time of testing shall be as defined in the EN 1504 series, and shall be as a minimum 7 days and 28 days for HC and PCC and 7 days for PC. The compressive strength R c , in newton p

39、er square millimetre, shall be calculated to the nearest 0,5 N/mm 2 using the following equation: R c = F c A where: F c is the maximum load at failure, in newton; A is the test area, of 1600 mm 2 . Calculate the mean value and standard deviation, to the nearest 0,5 N/mm 2 . 8 Test report The test r

40、eport shall include the following information: a) a reference to this European Standard; b) name and address of the testing laboratory; c) identification number of the test report; d) name and address of the organization or the person who ordered the test; e) name and address of the manufacturer or

41、supplier of the product; f) name or other identification marks on the product; g) date of supply of the product; h) date of manufacture of the test specimens, the maximum aggregate size, the compaction method used and the dimensions of the specimen; i) date of test; j) curing and conditioning data f

42、or the test specimens, (duration, temperature, relative humidity); k) identification of the test equipment and instruments used, including the make, type, test capacity, calibration details and measurement range; l) the individual results for bulk density and compressive strength; m) the mean value

43、and standard deviation of the bulk density and compressive strength results; n) inaccuracy or uncertainty of the test results; o) date and signature. Annex A (normative) Summary of temperatures and humidities for the curing, conditioning and testing of repair products and systems. A.1 Curing A.1.1 H

44、C (grouts, mortars and concretes) prepare as in EN 196-1, cover in film for 24 h; demould after 24 h; cure under water at (21 2)8C for 27 days. A.1.2 PCC (grouts, mortars and concretes) prepare as in EN 196-1, cover in film for 24 h; demould after 24 h and wrap in film for 48 h; unwrap and cure for

45、25 days in a standard laboratory climate of (21 2)8C and (60 10) % RH. A.1.3 PC (grouts, mortars and concretes) Cure for 7 days at (21 2)8C and (60 10) % RH. A.2 Conditioning and testing For specific applications, the following definition applies: A.2.1 Standard laboratory climate (Dry conditioning)

46、: Take from the curing/storage environment and condition for 7 days in a standard laboratory climate of (21 2)8C and (60 10) % RH.blankBSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |

47、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at

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